Stove



" No. 626,838. Patented June 13, I899.

A. A; LOW.

STDVE.

(Application filed. Feb. 5, 1898. (in Model.) 3 Sheets--Shaet I.

No. 626,838. Patented June l3, I899. A. A; Low.

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(Application filed Feb.'5, 1898.

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UNITED STATES PATENT OFF CE.

ABBOT AUGUSTUS LOW,

OF NEW YORK, N. 'Y.

STOVE.

SPECIFICATION forming part of Letters" Patent No. 626,838, dated June 13, 1899.

Application filed February 5 1 898.

To all whom it may concern:

Be it known that I, ABBOT AUGUSTUS Low, a citizen of the United States, residing in the city of New York, (Brooklyn,) in the county of Kings and State of New York, have invented certain new and useful Improvements in Stoves, of which the following is a specification sutlicient to enable others skilled in the art to which the invention appertains to make and use the same.

My invention is designed more particularly to apply to what are known as box-stoves for burning wood fuel, although applicable to stoves for burning other kinds of fuel.

My improvements are designed more particularly for use in conjunction with what are known as box-stoves, in which wood is principally burned as fuel.

The invention is designed to attain more perfect combustion and to regulate and control the combustion within the fire-chamber, so that the fuel contained therein may be burned gradually from front to rear when so desired or the whole mass of fuel be subjected to ignition from end to end, as in ordinary wood-burning stoves, if preferred.

The invention consists in the special construction and arrangement of parts hereinafter set forth and claimed.

In carrying out my invention I do not -confine myself to any special form or construction of stove, but herein, by way of illustration, show the principle applied to any ordi- In the accompanying drawings, Figure 1 is a top view of the stove provided with my flueplate, &c.; Fig. 2, a similar view with the flue-plate, &c., removed. Fig. 3 is a similar view of a stove provided with my improvements, showing the flue plate and cover swung back at right angles to the stove. Fig. at is a vertical central longitudinal section. Fig. 5 is a horizontal section upon plane of line 6 6, Fig. 5.

A is the stove-bod y, inclosing the fire-chamber B and provided with the usual door 0, damper D, and ash-pit cover E.

F is the thimble to which the stovepipe is ordinarily applied when the stove is used without my attachments.

G is the ordinary cover or top plate of the stove, provided with the holes g g and cover Serial No. 669,264. (No model.)

or covers 9 and being formed with a lateral extension g having a stud g engaging with a recess 9 said stud being designed to facilitate the swinging outward of the plate G and the extension being designed to support the plate when so turned, as illustrated in Fig. 3.

In applying my improvements to the stove I attach the auxiliary thimble-plate II to the rear of the stove-top by means ofclamps or bolts h hor by equivalent means that will sustain said auxiliary thimble-plate against displacement. This auxiliary thimble-plate H is formed with the supplementary thimble h, to which the stovepipe is applied.

I is a flue-plate fitting over and preferably resting upon the cover G and, also fittinginto or against and forming a continuation of the auxiliary thimble-plate H.

It will be seen that the auxiliary thimbleplate H creates a flue-space h around the ordinary pipe-thimble F and that this space 7t communicates with the flue-space t' in the flue-plate I, the sides and front wall of which inclose and define the said flue-space. A damper i is provided in the Wall of the fine t for the purpose of controlling the admission of air to the flue 1 to effect the combustion of gases and carbon entering the flue i from the combustion-chamber, especially through the openings 9 g in the top plate G.

The flue-plate I is formed with the holes 2' i closed by covers 1 and the ordinary thimble F is closed by means of a special cover f, excepting when it is desired to use the stove with a direct draft, as under old conditions before the application of my attachments. It is also formed with handles F, by which it may be bodily lifted from the cover G when desired.

By way of illustrating the practical operation of my invention we will suppose the parts to be in position, with the smoke-opening F closed by cover f. The combustion-chamber having been charged with fuel, the second hole g in the top plate G is also closed with a cover g and the holes 7? i in the fine I closed with covers 1; i. The fire being started under these conditions, air for combustion will enter primarily through the dam'perD at the front and bottom of the stove, the products of combustion passing upward through the opening g, where they encounter a secondary supply of air admitted through the supplementary damper 1' in the flue-plate I, thereby insuring the ignition of the hot combustible gases and solids arising from the combustion-chamber B. The final products of combustion pass from the flue 2' through the thimble-plate H into the smoke-pipe. Under these conditions the combustion of fuel will necessarilybe restricted mainly to the front portion of the chamberB and the ignition of fuel in the rear portion of the chamber will be prevented or, at least, materially retarded. Vhen'the fuel in the front of the fire-chamber B is nearly consumed or when it is desired to extend the area of combustion farther rearward, the cover 9 is removed from the hole g and placed upon the hole 9, when the products of combustion will pass. into the flue 2' through the opening g, or, if preferred, both the openings g g may remain uncovered, the resulting admixture of fresh air With the unconsumed products of combustion tending to insure the perfect consumption of the fuel prior to the escape of the products of combustion from the fine 2' into the pipe attached to the thimble h.

It is obvious that by the manipulation of tion, the essential feature in this connection being the direction and control of the draft or induced air and the attainment of practically complete combustion by means of the primary damper, the plurality of openings in the stove and flue-plates, and the covers therefor, in conjunction with the auxiliary flue provided with the auxiliary damper for admitting air to the hot but unconsumed products of combustion.

What I claim as my invention, and desire to secure by Letters Patent, is

In a box-stove the combination of the stovebody A, formed with the smoke-opening F, the cover f, for closing said smoke-opening F, the pipe thimble-plate H, rigidly attached to the stove-body, the primary swinging top plate G, provided with holes g, g, and covers 9 the auxiliary flue-plate I, upon the top plate G, fitting to the open side of the thimble-plate H, and formed with openings 2' 1' and damper t" for admitting air to support combustion, and the covers i, '5, the whole arranged and operating substantially in the manner and for the purpose described.

ABBOT AUGUSTUS LONV.

\Vitnesses:

D. W. GARDNER, FLORENCE MIATT. 

